OAKLAND, Calif – A federal grand jury has indicted members of a San Francisco Bay Area street gang on charges that they participated in a string of armed robberies and then bragged about the crimes on social media.

The United States Attorney's Office for the Northern District of California said in a statement on Thursday that the grand jury had returned a 21-count superseding indictment against seven members of the Landry Crew, an Oakland, California, gang that is affiliated with the larger Money Team gang.

Starting in 2012, the gang members began to commit a number of crimes, including armed robberies of Rite Aids, Safeway and Walmart stores as well as home-invasion-style robberies, authorities said.

The indictment says the Landry Crew boasted about their crimes on Facebook, Twitter and other social media sites. Some of the gang members took photos of themselves after their crimes rolling around in cash and stolen items.